# Keyword Understanding vs TapTap Keys

The clearest difference is price: TapTap Keys at Free against Keyword Understanding's $17.99. Keyword Understanding's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

TapTap Keys is free to download; Keyword Understanding costs $17.99 up front. TapTap Keys sells 1 one-off in-app purchase. Keyword Understanding asks for nothing beyond the download.

## The numbers

| Metric | Keyword Understanding | TapTap Keys |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/keyword-understanding/id816979055/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Paid | — |
| Size | 64 MB | 4 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aptus Speech and Language Therapy Limited](https://appshunter.io/developer/1482673468) | [绪 张](https://appshunter.io/developer/1887860893) |

## What reviewers say

### Keyword Understanding

[App page](https://appshunter.io/ios/app/keyword-understanding/id816979055)

This app helps users of all ages improve their ability to understand spoken and written directions. It features various activities targeting vocabulary, basic concepts, and sequential instructions, making it beneficial for individuals with listening comprehension or processing difficulties.

**Highlights:** Follow spoken and written directions, Improve vocabulary and basic concepts, Target auditory attention and working memory, Activities for one and two-step directions, Temporal and sequential direction practice, Comprehension check for vocabulary and concepts

**Features:** macOS Compatibility

**In-app purchases:** none


### TapTap Keys

[App page](https://appshunter.io/ios/app/taptap-keys/id6761337452)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rhythm Guide Pro | $0.99 | one-time |


## Frequently asked questions

### Is Keyword Understanding free?

Keyword Understanding costs $17.99, with no in-app purchases.

### Is TapTap Keys free?

TapTap Keys is free to download, with in-app purchases available.

### Do Keyword Understanding or TapTap Keys have ads?

Neither Keyword Understanding nor TapTap Keys shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*